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E-Acta Natuarlia Pannonica DOI: 10.24369/eANP.2017.14.25. eActa Naturalia Pannonica 14: 25–28.|20.03.2017 | HU ISSN 2061–3911 25 A new species of Macrostemum from Taiwan (Trichoptera: Hydropsychidae) Ottó Kiss Abstract. A new species of the Macrostemum fastosum Group (Trichoptera, Hydropsychidae, Mac- ronematinae G. Ulmer 1905, subfamily) is described Macrostemum kissnandori n. sp. from Taiwan of China. The imagines and their genitalia are illustrated. Key words. Caddisflies, taxonomy, distribution, diagnosis, Taiwan. Author’s address. Ottó Kiss|Bajcsy-Zs. u. 4. | 3014 Hort |Hungary e-mail: otto_kiss @freemail.hu Introduction The genus Macronema (type species Macronema lineatum, Pictet 1836), is diverse and widespread in the Neotropical region according to Flint & Bueno-Soria (1982), Burmaister (1989), Franca, Paprocki & Adolfo (2013), Ogbu & Adu (2006). Mac- ronema was synonymized with Macrostemum Kolenati 1859 by Ulmer in 1907 Pap- rocki. Flint & Bueno-Soria (1979) divided the Neotropical representatives species of Macronema into the M. hyalium and M. percitans Groups. All species from the M. hyalium Group are now placed in genus Macrostemum according to Paprocki (2008). The genus Macronema in the Australian region was reviewed by Nebois (1984a) resulting in description of the genus Balimorpha. The Australian species were transferred either to the genus Macrostemum, which has been recorded in low di- versity in the Neotropical region as well. Malicky (2007) from Bhutan mentioned the occurrence of Macrostemum fasto- sum Walker 1852, and Macrostemum thomasi Mey 1993. Later Malicky (2009, 2010) has published the genitalia diagrams of 25 Macrostemum species from Southeast Asia. Tian, Li & Sun (1991) reported on the taxonomy of 10 Macrostemum species amongst them the Taiwan species Macrostemum fastosum Walker, 1852 was also mentioned. Malicky (2014) reported Taiwanese Trichoptera, listing the species Macrostemum formosicolum Matsumura 1931. Morse (2016) listed 106 Macrostemum species among them there were Macrostemum formosicolum Matsumura 1931, and Macrostemum quinquepuctatum Matsumura 1931, as well as a further two subspecies namely Macrostemum fastosum bifasciata Martinov 1935 and Macrostemum fastosum fasci- atum Martinov 1935. Based on the current literature the following list of Taiwan species can be mentioned yet: Macrostemum fastosum Walker, 1852, Macrostemum formosicolum Matsumura 1931, and Macrostemum quinquepunctatum Matsumura 1931. In 1982 Flint & Bueno-Soria reinstated the genus Macrostemum based on charac- ters of wing coloration and male genitalia as well as on larval characters provided by Paprocki (2008). © Pannon Intézet | Pannon Institute | Hungary | Pécs | http.//epa.oszk.hu/e-Acta_Naturalia_Pannonica 26 Kiss: Macrostemum kissnandori n. sp. Material and methods. The specimens in this study were captured in light trap and are stored in 75% ethanol. The posterior half of the abdomen of the holotype male was cleared in 20% KOH and the genitalia everted. Then the genitalia was placed in ethanol for examination under a stereomi- croscope (Nikon, SMZ-10-2x) and sketched. For the identification of species the works by Malicky (2009, 2010),Tian, Li & Sun (1991), Oláh & Johanson (2008) and Oláh (2013). The holotype of the new species are deposited in the Mátra Museum of Hungarian Natural History Museum (Kossuth L. u. 40, Gyöngyös, Hungary. The terminology follows that of Oláh & Johanson (2008) and Tian, Li & Sun (1991). The abbreviations used in the text and for figures correspond with those of Oláh & Johanson (2008), Oláh (2013) and Tian, Li & Sun (1991). Macrostomum kissnandori new species (Figs 1–7.) Holotype: male Taiwan, 2 km N of Tupan, Prov. Taitung (Republic of China), 120o52’E, 22o29’N, 500 m elevation by light trapping, 24 October 1995, leg. Tibor Csővári & Pál Stéger (gen. prep. No 127. Ottó Kiss, coll. Mátra Museum of Hungarian Natural Museum). Paratypes: 2 male Taivan, 2 km N of Tupan, Prov. Taitung (Republic of China), 120o52’E, 22o29’N, 500 m elevation by light trapping, 24 October 1995, leg. Tibor Csővári & Pál Stéger (coll. Ottó Kiss). Description ― Male (in ethanol, n=3). Body length 9.8–10.2 mm, length of each forewing 13.0–13.2 mm is yellow with light pattern composed of 4 patches which yellowish brown, circle-shaped patches in subcostal area, nearly circle- shaped thyridium cell patch, similar the cubital area patch and subradial area patch. Hind wings 8.6–9.0 mm long and width 4.1–4.5 mm, colour pale yellow. Dorsum of head an totally prothorax, mesothorax and metathorax as well as coxa and the first tibiae are yellow; head of wentrum setae, warts and inferior appendages yel- low. Compound eyes characterized by black patches on yellow base. Male genitalia (Figs 1–5). Segment IX (IX. Figs 1, 2) short, dorsal edge sunk- en centrally, ventrally widening quadrangle ventrally in lateral view; the central part of segment IX dorsally projecting conical rise; the anterior end of the profile has a visible, short, wavy, thickening row of dots and a minor lateral ear, the posterior end is arched. Segment X (X., Figs 1, 2) dorsal edge uneven triangular in lateral view; V-shaped opening dorsally with a formation resembling a right-handed and left-handed hockey stick. Segment X (Fig. 1) attached to ventral peak with short, lobural shaft. The coxopodit and harpago (cox., harp., Figs 1, 3) with equal length but of different diameters, coxopodit thicker than harpago. The phallic organ (ph., Figs 3, 4, 5) cupped at the caudal end, the central portion of the peak bulges, be- low are two minor spikes. The phallobase broadening and bending downwards, in angle 120o. Endophallus narrowing (centrally) in caudal direction, the phallicata is a long thin tube. The paraproct is vestigial. Female. Unknown. Differential diagnosis. This new species belongs to the Macrostemum paradia- tum Thian, Li & Sun 1991, which they described from China (Anji, Zhejaing Prov., pp. 366 and 368, fig. 2), but they differ in details of markings in the forewings as well as in colour and the structure of the genitalia. 1. Segment IX of the dorsal edge is sunken centrally (it does not, become rounded, central conical protrusion is absent as in M. paradiatum). 2. Segment X is triangular, dorsal edge is uneven (not, straight and arched in M. paradiatum); viewed from above the V-shaped opening has the two hockey stick eActa Naturalia Pannonica 14|2017 27 Figs 1–6. Macrostemum kissnandori new species male holotype genitalia. 1L, left lateral view; 2D, IX., X. segments, dorsal view; 3D, gonopod and phallic organ, ventral view; 4L, phal- lic organ, lateral view; 5V, phallic organ, ventral view; 6L, forewing patchs, right lateral view; Abbreviations: cox. = cox- opodit; end = endophallus; g. = gonopod; h. = harpago; ph. = phallicata (aed.= aedéage of Schmid, 1970); phal. = phal- lotheca; ph.o. = phallic organ; IX. = segment IX; X. = seg- ment X. Fig. 7. Macrostemum kissnandori new species male, holotype, 7 habitus 28 Kiss: Macrostemum kissnandori n. sp. formations drawing away (the ends do not become thinning wing forms, on the ventral edge the short lobe on a staff is absent in M. paradiatum). 3. The coxopodit and the harpago are of uniform length (not, having the harpago significantly shorter as M paradiatum). 4. The angle of the phallobase is 120o (not, 90o as in M. paradiatum). 5. The peak of the phallic organ bulges centrally, below are two minor slanted spikes (there is no protrusion and two spikes are absent). Etymology. This fine species is cordially dedicated to my son Dr Nándor Kiss. Acknowledgements. I am grateful to Tibor Csővári and Pál Stéger for the light trap material. Translator and lecturer: Oxford International Nyelviskola Kft., Eger. Thank to Imre Fazekas (editor) for his guidance on information technology and publishing this paper. References Burmeiter E. G. 1989: Der Lectotypus van Macronema maculatum (Perty, 1833), (Trichoptera, Hydropsychi- dae). – Spixiana 11: 259–262. Flint Jr. O. S. & Bueno-Soria J. 1979: Studies of Neotropical Caddisflies, XXIV. The genus Macronema in Mesoamerica (Trichoptera: Hydropsychidae). – Proceedings of the Entomologica Society of Washing- ton 81 (4): 522–535. Flint, Jr. O. S. & Bueno-Soria J. 1982: Studies of Neotropical Caddisflies, XXXII: The Immature Stages of Macronema varipenne Flint & Bueno with the Division of Macronema by the Resurrection of Macrostemum (Trichoptera: Hydropsychidae). – Proceedings of the Hidrological Society of Washington 95 (5): 358– 370. Franca D. Paprocki H. & Adolfo R. C. 2013: The genus Macrostemum Kolenati 1859 (Trichoptera: Hydro- psychidae) in the Neotropical Region: Description of two new species, taxonomic notes, distributional records and key to males: http://dx.doi.org./10.11646/Zootaxa: 3716: 3.1 (Accessed 18 April 2016). Malicky H. 2007: Köcherfliegen aus Bhutan (Insecta, Trichoptera). – Linzer biologische Beiträge, 39/1: 457–517. Malicky H. 2009: Beiträge zur Kenntis asiatisher Trichopteren. – Braueria 36: 11–58. Malicky H. 2010: Atlas of Southeast Asia Trichoptera. – Biology Department, Faculty of Science, Chiang Mai University, Chiang Mai, 346 p. [Chantaramongkol, P. (Ed.), Thailand]. Malicky H. 2014: Köcherfligen (Trichoptera) von Taiwan, mit Neubeschreibungen. – Linzer biologische Beiträge 42 (2): 1607–1646. Morse J. 2016: Trichoptera World Checklist. – Available from: http://www.clemson.edu/cafls/ depart- ments/esps/database/trichopt/ (Accessed 21 April 2016). Nebois A. 1984a: Review of taxonomic position of Australian and New Guinea species previously ascribed to Macronema (Trichoptera:
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